Two-stage transcrestal sinus floor elevation-insight into replantation: Six case reports

Table 1 Details of the six cases

	Case 1	Case 2	Case 3	Case 4	Case 5	Case 6
Gender	Woman	Man	Man	Man	Man	Woman
Age (yr)	25	54	29	63	46	67
Position	16	16	26	26	16	26
Smoking	No	Yes	No	Yes	No	No
Diabetes	No	No	No	No	No	No
First-stage surgery
Bone substitute	Yes, bio-oss	Yes, bio-oss	No	Yes, bio-oss	No	Yes, bio-oss
Perforation	No	No	No	No	No	No
RBH (mm)	5.22	4.43	3.35	4.56	6.10	5.22
Implant (mm)	4.8 × 10; Straumann	4.8 × 8; Straumann	4.8 × 8; Straumann	4.8 × 10; Straumann	4.3 × 10; Nobel	4.8 × 10; Straumann
Stability (N·cm)	≥ 25	25	15	≥ 25	15	25-35
Failure time	1 mo	2 mo	1 yr	1 mo	7 mo	1 mo
Second-stage surgery
Bone substitute	No	No	No	No	No	Yes, bio-oss
Perforation	No	No	No	No	No	No
RBH (mm)	11.47	8.02	6.18	7.04	8.06	9.80
Implant (mm)	4.8 × 10; Straumann	4.8 × 10; Straumann	4.8 × 10; Straumann	4.8 × 10; Straumann	4.1 × 10; Straumann	4.8 × 12; Straumann
Stability (N·cm)	15	15	15	≥ 25	≥ 25	15
Loading time	2.5 yr	2.5 yr	0	2.5 yr	2.5 yr	2.5 yr
Third-stage surgery
Bone substitute			No
Perforation			No
RBH (mm)			6.49
Implant (mm)			5.0 × 10; Nobel
Stability (N·cm)			25

RBH: Residual bone height.